Minimum Viable D&D

Abstract

Minimum Viable D&D (MVD&D) is a design-analysis frame for identifying the smallest set of mechanics and features needed to preserve the feel of Dungeons & Dragons. It focuses on essentials that have been present in most editions while distinguishing true core elements from optional add-ons and redundant complexity.

Core Elements

The source argues that a minimalist D&D should include at least:

Six ability scores
Three or four races
Three or four classes
Saving throws
Armor Class and Hit Points
Experience points and levels
Spells
Encumbrance
Equipment with meaningful differences
Treasure, including magic items
Rules for combat, interaction, dungeon exploration, and wilderness exploration
Monsters with hit dice

These elements are presented as the basic PHB-style foundation needed to play classic OSR adventures.

Ties vs Add-ons

A central distinction in MVD&D is between mechanics that are tied to other systems and those that are untied. Tied mechanics create meaningful interactions, such as abilities affecting hit points and saving throws, while untied mechanics feel optional and disconnected.

Many add-ons are useful only if they connect existing systems. For example, skills and class abilities should tie into surprise, initiative, wilderness exploration, and social interaction rather than exist as isolated rules.

Candidate Minimal Mechanics

Ability Scores

The article contends that ability scores are now part of the D&D experience, even though some minimalist games can omit them entirely. They remain a strong organizing principle and are important for character differentiation.

Classes and Specialization

The author considers most classic classes essential, but sees some like bards, druids, barbarians, and monks as optional rather than minimum. Thieves are borderline: they are valuable for their dungeon-focused skills, but only some abilities are truly required for MVD&D.

Saving Throws

Saving throws are mandatory, but the exact structure is flexible. For a minimalist design, one unified save may be enough instead of multiple specialized save categories.

Experience and Advancement

XP and levels are core to D&D's feel, though the author notes some campaigns can run without XP. A single experience table is sufficient for a minimalist model.

Spellcasting

Spells are essential for D&D, but Vancian spell slots are not necessarily part of the minimum. Alternative resource systems or ties to existing mechanics may serve the same purpose with less complexity.

Hit Dice

Different hit dice values are useful, especially for monsters, but a minimalist system could use a shared class hit die while still preserving variety through monster design.

Minimal Skill Design

The article suggests a very small skill system can fulfill missing ties in the rules. Thief-style skills plus one general mechanic for wilderness, persuasion, and stealth could be enough, as long as those mechanics connect to existing systems.

Conclusions

Minimum Viable D&D is less about removing every optional rule and more about preserving the interconnected structure that makes D&D feel like D&D. The goal is to retain core expectations while removing redundant or poorly tied mechanics.